WGL_NV_multigpu_context
https://www.khronos.org/registry/OpenGL/extensions/NV/WGL_NV_multigpu_context.txt
WGL_NV_multigpu_context

	WGL_CONTEXT_MULTIGPU_ATTRIB_NV 0x20AA
	WGL_CONTEXT_MULTIGPU_ATTRIB_SINGLE_NV 0x20AB
	WGL_CONTEXT_MULTIGPU_ATTRIB_AFR_NV 0x20AC
	WGL_CONTEXT_MULTIGPU_ATTRIB_MULTICAST_NV 0x20AD
	WGL_CONTEXT_MULTIGPU_ATTRIB_MULTI_DISPLAY_MULTICAST_NV 0x20AE